Finding the Fourth Proportional to 870,372,101.53, 1,201,142,978.99 and 473,910,467.05
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Solution
The fourth proportional to 870,372,101.53, 1,201,142,978.99 and 473,910,467.05 is: 654,012,495.54
Step by Step Solution
- Step 1: Write the proportion equation
870,372,101.53 : 1,201,142,978.99 = 473,910,467.05 : x - Step 2: Convert to fraction form
870,372,101.53/1,201,142,978.99 = 473,910,467.05/x - Step 3: Cross multiply
870,372,101.53x = 1,201,142,978.99 × 473,910,467.05 - Step 4: Simplify right side
870,372,101.53x = 569,234,230,166,979,264 - Step 5: Solve for x
x = 569,234,230,166,979,264/870,372,101.53 - Step 6: Final answer
x = 654,012,495.54
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.